A tactical adventure game combining the turn-based combat of XCOM with story, exploration, stealth, and strategy. Take control of a team of Mutants navigating a post-human Earth. Created by a team including former HITMAN leads and the designer of PAYDAY.

Do we know if there are more character types other than the hog, duck and human mutant?

"A duck with an attitude problem and a boar with anger issues; these aren’t your typical heroes. Get to know Dux, Bormin, Selma, and many other characters each with their own unique personality and deranged perspective on the world and their situation."

I think I heard in one of the dev talks that you can find other characters during your travels.